Method of effecting the destruction of pathogenic organisms in water or other liquids.



No. 839,926. I '1 PATENTED JAN. 1, 1907. P. G. GRIFFITH. METHOD OFMEETING THE DESTRUCTION OF PATHOGENIU ORGANISMS IN WATER OR OTHERLIQUIDS APPLICATION FILED JUNE 3. 1905.

Fig.1.

once to the accompanying drawings, which .represent diagrammatically ameans where- UNITED PATRICK. GILL GRlFFlllH, METHOD'OF EFFECTlNG THEDESTRUCYION 6F PAlHOGliNlC ORGAN-ISMS lll OF LONDON, ENGLAND.

WATER OR OTHER LlQlllDS.

filpecification of Letters Patent.

Patented Jan. 1, 1907.

Application filed June 3,1905. Serial No. 268,570.

To all whom it may concern.-

Be it known that l, PATRICK GILL Gen F1TII,3- subject of the King GreatBritain, residing at Villa Molitor, 636 Green Lanes, London, England,have invented a new and useful Method of Efi'ecting the Destruction ofPathogenic Organisms in Water or other Liquids, of which the followingis a specification.

This invention relates to the purifica tion of Water, and is moreparticularly intended for use in connection with systems of \VittET-SUPply for towns, districts, communities, corporations, and other areas orbodies.

The object of my invention is to effect the destruction of pathogenicorganisms in the water or-other liquid, and thereby prevent the morecommon disease germs, typhoid and the like, being conveyed through suchsystems to the recipients and consumers of the Water.

According to my invention the water is raised to a temperature of centirade to centigrade for a period not e ediug twentyfive seconds. Thisheating has the effect of destroying such pathogenic microorganisms ascommonly exist and. are con- I veyed by the Water.

In order that my invention may be clearly understood and readily carriedinto effect, i

'quired degree.

will proceed to describe the same with referby the objects hereinbeforementioned may be accomplished, Figure 1 being a partial clevation andvertical section illustrating the arrangement of the apparatus, and Fig.2 an end view or" the chamber in which the water or liquid is receivedand from which the treated Water or liquid is delivered.

According to the mode of carrying my invention into effect, described byway of example, I propose to convey the water to be treated by means ofsuitable conduits, such as pipes a from a head of water, which may be atank, such as A, situated at a suitable elevation, to one or morechambers or receptacles B, Which are preferably lagged or surroundedWith some material which is a bad conductor of heat, the Water reachingthe said chambers B by way of branch pipes at and heads (1 Thesechambers are provided With tubes or closely-associated plates b l), ofcopper or other suitable metal or material, forming passages b b for thewater, the latter passing, preferably, upwardly through the said tubesor passages in the said chambers and being led from thence by way of thehead I) and pipe into receptacles O, adapted to raise the temperaturethereof to the re- The heating-receptacles may comprise series of tubes0 or the like suitably arranged for conveying the full effect of theheating means, which may be steam, fire, or other convenient medium, tothe Water circulating therethrough.

In the example illustrated it is assumed that steam is the heatingmedium employed and that same enters the tube or coil 0 by way of thepipe 0 and leaves the tube or coil by Way of the pipe 0 After being thusraised in temperature the Water is conveyed back to the lirstunentionedchambers B in such a manner--say by Way of pipes 9- that it is caused tollow by gravitation along the exterior surfaces of the tubes or passagesh, conveying the untreated Water to the heating receptacles-that is tosay, the treated water flows by way of the passages I) through the saidchambers B. l/Vith a View to increasing the transference of heat fromthe treated to the untreated or from the outgoing to the ingoing Waterthe tubes or plates 6 are preferably of bent, curved, zigzag, or anyother tortuous or crooked form, so as to retard the progress of theWater along their surfaces. 1 he outgoing or treated water is herebycooled or deprived of its heat by the water Which feeds theheaterswithout actual contact therewith, While the heat given oil fromthe heated Water in the passages in is taken up by the water circulatingthrough the tubes or passages b from the supply-tank A, a considerableeconomy in heating resulting and great expedition in the deprivation ofthe treated water of the heat contracted thereby in theheating-receptacle C.

Although in the foregoing description I have referred to a series ofchambers and receptacles and the consequent plurality of heads andcomlucting-pipes, for the sake of clcarnoss l have illustrated but oneset of the appliances necessary for carrying out the invention. It will,however, be readily understood that the various pipes or appliances maybe provided, as may be required, With means, such valves or otherdevices, for regulating or cutting of! the supply or otherwise varyingthe system in-its actual Working as circumstances or requirements maydemand or the fancy of the operator may dicters Patent, is

1. The herein-described method of purifying water or' other liquids,consisting in raising the water or other liquid to a temperature of 65centigrade to 85 centigrade for a period not exceeding twentyfiveseconds,

on;the"-purpose specified.

' 2. The herein-described method of uninterruptedly purifying water orother liquids, consisting in raising the water or other liquid to atemperature of 65 centigrade to 85 centigrade for a period not exceedingtwentyfive seconds and in causing the treated or, outgoing'water orother liquid to impart other liquid, substantially as described.

3. The herein-described niethod of purifying Water or other liquidconsisting in maintaining the water or other liquid at a temperaturebelow a sterilizing temperature for a period of substantiallytwenty-five seconds, for the purpose specified.

4. The herein-described method ofjuninterruptedly purifying water orother liquids, consisting in raising the liquid to a temperature ofbetween 65 centigrade and 85 centigrade for a periodapproximatingtwentyfive seconds, and maintaining a continuous flow of the liquid intoand out from the heating zone, substantially as described.

In witness whereof I have hereunto set my hand in presence of twoWitnesses.

PATRICK GILL GRIFFITH.

Witnesses F. O. HAWTIN, WALTER J. SKERTEN.

heat to the untreated or ingo'ing water or

